CN213888161U - High-precision powder metallurgy lower punching die - Google Patents
High-precision powder metallurgy lower punching die Download PDFInfo
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- CN213888161U CN213888161U CN202022689331.4U CN202022689331U CN213888161U CN 213888161 U CN213888161 U CN 213888161U CN 202022689331 U CN202022689331 U CN 202022689331U CN 213888161 U CN213888161 U CN 213888161U
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Abstract
The utility model relates to the technical field of mold equipment, in particular to a high-precision powder metallurgy lower punching mold, which comprises an upper mold, a middle mold and a lower mold, wherein the upper side of the middle mold is provided with the upper mold, the lower side of the middle mold is provided with the lower mold, the upper mold comprises an upper mold gland, an upper mold wall and an upper mold cavity, the lower side of the upper mold gland is provided with the upper mold wall, the inner side of the upper mold wall is provided with an upper mold cavity, the lower side of the upper mold gland and the inner part of the upper mold cavity are provided with a telescopic spring, one end of the telescopic spring, which is far away from the upper mold gland, is provided with an upper scraper blade, the outer wall of a core rod and the upper side of a top block are provided with a lower scraper blade, the bottom surface of the lower mold gland and the corresponding to the core rod and the top block are correspondingly provided with an operation through groove, the upper scraper blade can slide downwards through the elasticity of the telescopic spring after raw material powder is compressed and molded, so as to scrape the raw material powder which is pushed to the upper mold cavity by the core rod, so that the raw material can not remain in the upper die cavity after the upper die presses the raw material powder.
Description
Technical Field
The utility model relates to a mould equipment technical field specifically is a die utensil under high-accuracy powder metallurgy.
Background
Powder metallurgy is a process technology for manufacturing metal materials, composite materials and various products by preparing metal powder or using the metal powder as a raw material and forming and sintering the metal powder.
When raw material powder is compressed by the conventional powder metallurgy lower punching die, the raw material powder is gradually remained and adhered to an inner cavity of the die along with the relative movement of a die component, so that the matching clearance of the die is reduced, the die generates heat along with the progress of press forming, the assembly clearance is further reduced, the friction force is increased, the relative movement resistance of the die component is increased, the relative movement is difficult, and the die is clamped (generally called as a clamping die), so that the problem is improved by the high-precision powder metallurgy lower punching die.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a stamping die under high-accuracy powder metallurgy to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a high-precision powder metallurgy lower punching die comprises an upper die, a middle die and a lower die, wherein the upper side of the middle die is provided with an upper die, the lower side of the middle die is provided with a lower die, the upper die comprises an upper die gland, an upper die wall and an upper die cavity, the lower side of the upper die gland is provided with an upper die wall, the inner side of the upper die wall is provided with an upper die cavity, the lower side of the upper die gland and the inner part of the upper die cavity are provided with a telescopic spring, one end of the telescopic spring, which is far away from the upper die gland, is provided with an upper scraper plate, the center of the top surface of the middle die is provided with a connecting die cavity, the lower die comprises a lower die gland, a lower die wall and a lower die cavity, the upper side of the lower die gland is provided with a lower die wall, the inner side of the lower die wall is provided with a lower die cavity, the lower end of the core is provided with a top cover, and the outer wall of the upper side of the core is provided with top blocks in bilateral symmetry, and a lower scraper is arranged on the outer wall of the core rod and positioned on the upper side of the ejector block, and a through groove corresponding to the core rod and the ejector block is correspondingly formed in the bottom surface of the lower die gland.
Preferably, the upper scraper is matched with the upper die cavity in size and shape, and the upper scraper is connected with the upper die wall in a sliding manner.
Preferably, the telescopic springs are provided with a plurality of groups, and the sum of the length of the telescopic springs in a natural state and the height of the upper scraper is equal to the height of the upper die cavity.
Preferably, the upper die and the lower die are matched with the connecting die cavity in shape and size, and the connecting mode is sliding detachable connection.
Preferably, the shape and size of the lower scraper are matched with those of the lower die cavity, the connection mode is sliding connection, and the connection mode of the core rod and the lower scraper is sliding connection.
Preferably, the core rod penetrates through the lower die gland, and the core rod is connected with the lower die gland in a sliding mode through the operation through groove.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses in, can compress tightly the shaping back at raw material powder through the last scraper blade that sets up, elasticity through expanding spring slides down, thereby can scrape out the raw material powder that is pushed up the mould intracavity by the plug, make and go up the mould and can not remain the raw materials in the mould intracavity after pushing down raw material powder, and the lower scraper blade of setting can up move through the kicking block of plug both sides, thereby can scrape out the remaining raw material powder of lower mould intracavity, after raw material powder shaping, the phenomenon of "die clamping" can not appear, the time of clearance has been saved, thereby further increase the mould efficiency at the during operation, make the parts machining come out more pleasing to the eye.
Drawings
Fig. 1 is an overall three-dimensional schematic diagram of the present invention;
FIG. 2 is an overall sectional view of the present invention;
fig. 3 is a bottom view of the lower mold of the present invention.
In the figure: 1-upper die, 2-middle die, 3-lower die, 4-upper die gland, 5-upper die wall, 6-upper die cavity, 7-expansion spring, 8-upper scraper, 9-connecting die cavity, 10-lower die gland, 11-lower die wall, 12-lower die cavity, 13-core rod, 14-top cover, 15-top block, 16-lower scraper and 17-operation through groove.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution:
a high-precision powder metallurgy lower punching die comprises an upper die 1, a middle die 2 and a lower die 3, wherein the upper side of the middle die 2 is provided with the upper die 1, the lower side of the middle die 2 is provided with the lower die 3, the upper die 1 comprises an upper die gland 4, an upper die wall 5 and an upper die cavity 6, the lower side of the upper die gland 4 is provided with the upper die wall 5, the inner side of the upper die wall 5 is provided with the upper die cavity 6, the lower side of the upper die gland 4 and the inner part of the upper die cavity 6 are provided with a telescopic spring 7, one end of the telescopic spring 7, which is far away from the upper die gland 4, is provided with an upper scraper 8, the center of the top surface of the middle die 2 is provided with a connecting die cavity 9, the lower die 3 comprises a lower die gland 10, a lower die wall 11 and a lower die cavity 12, the inner side of the lower die wall 11 is provided with the lower die cavity 12, the inner part of the lower die cavity 12 is provided with a core rod 13, the lower end of the core rod 13 is provided with a top cover 14, the upper outer wall of the core rod 13 is provided with top blocks 15 in bilateral symmetry, a lower scraper 16 is arranged on the outer wall of the core rod 13 and on the upper side of the top block 15, a through groove 17 corresponding to the core rod 13 and the top block 15 is arranged on the bottom surface of the lower die gland 10, the upper scraper 8 is matched with the upper die cavity 6 in size and shape, the upper scraper 8 is connected with the upper mould wall 5 in a sliding way, a plurality of groups of extension springs 7 are arranged, and the sum of the length of the extension spring 7 in the natural state and the height of the upper scraper 8 is equal to the height of the upper die cavity 6, the shapes and the sizes of the upper die 1 and the lower die 3 are matched with the connecting die cavity 9, and the connection mode is a sliding detachable connection mode, the lower scraping plate 16 is matched with the shape and the size of the lower die cavity 12, and the connection mode is a sliding connection, the connection mode of the mandrel 13 and the lower scraper 16 is a sliding connection, the mandrel 13 penetrates through the lower die gland 10, and the mandrel 13 is connected with the lower die gland 10 in a sliding mode through the operation through groove 17.
The utility model discloses work flow: when the powder forming device is used, a core rod 13 is inserted into a lower die cavity 12 through an operation through groove 17, then the core rod 13 moves upwards to penetrate through a lower scraper 16, then ejector blocks 15 on two sides of the core rod 13 abut against the lower scraper 16, then an upper die 1, a middle die 2 and a lower die 3 are installed at proper positions, then raw material powder is placed into a connecting die cavity 9, then the upper die 1 is inserted into the connecting die cavity 9 to be pressed downwards with the lower die 3, then the core rod 13 is pushed upwards, when a top cover 14 contacts a lower die gland 10, the lower scraper 16 is just flush with the upper end of a lower die wall 11, at the moment, the core rod 13 pushes the upper scraper 8 upwards, when the upper die 1 is pulled back upwards after the raw material powder is formed, at the moment, the core rod 13 does not exert upward force on the upper scraper 8, the upper scraper 8 is pushed downwards by a telescopic spring 7, so that residual raw material powder in the upper die cavity 6 is scraped, and then the core rod 13 and the lower die 3 are pushed upwards, thereby release fashioned raw materials powder and connect diaphragm capsule 9 to take away can, can compress tightly the shaping back at raw materials powder through the last scraper blade 8 that sets up, elasticity through expanding spring 7 slides down, thereby can scrape out the raw materials powder in being pushed up die cavity 6 by plug 13, make and go up mould 1 and can not remain the raw materials in die cavity 6 after pushing down raw materials powder, and the lower scraper blade 16 that sets up can up move through kicking block 15 of plug 13 both sides, thereby can scrape out remaining raw materials powder in lower die cavity 12, after the raw materials powder shaping, the phenomenon of "die clamping" can not appear, the time of clearing up has been saved, thereby further increase the efficiency of mould at the during operation, make the parts machining more pleasing to the eye.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a die utensil under metallurgical high accuracy powder, includes mould (1), well mould (2) and lower mould (3), its characterized in that: the upper side of the middle die (2) is provided with an upper die (1), the lower side of the middle die (2) is provided with a lower die (3), the upper die (1) comprises an upper die gland (4), an upper die wall (5) and an upper die cavity (6), the lower side of the upper die gland (4) is provided with the upper die wall (5), the inner side of the upper die wall (5) is provided with the upper die cavity (6), the lower side of the upper die gland (4) is provided with a telescopic spring (7) inside the upper die cavity (6), one end, away from the upper die gland (4), of the telescopic spring (7) is provided with an upper scraper (8), the top surface center of the middle die (2) is provided with a connecting die cavity (9), the lower die (3) comprises a lower die gland (10), a lower die wall (11) and a lower die cavity (12), the upper side of the lower die gland (10) is provided with a lower die wall (11), and the inner side of the lower die wall (11) is provided with a lower die cavity (12), the lower die is characterized in that a core rod (13) is arranged in the lower die cavity (12), a top cover (14) is arranged at the lower end of the core rod (13), ejector blocks (15) are arranged on the outer wall of the upper side of the core rod (13) in a bilateral symmetry mode, lower scrapers (16) are arranged on the outer wall of the core rod (13) and located on the upper side of the ejector blocks (15), and through grooves (17) are correspondingly formed in the bottom surface of the lower die gland (10) and corresponding to the core rod (13) and the ejector blocks (15).
2. A high precision powder metallurgy lower punch die as claimed in claim 1, wherein: the upper scraper (8) is matched with the upper die cavity (6) in size and shape, and the upper scraper (8) is connected with the upper die wall (5) in a sliding manner.
3. A high precision powder metallurgy lower punch die as claimed in claim 1, wherein: the telescopic springs (7) are provided with a plurality of groups, and the sum of the length of the telescopic springs (7) in a natural state and the height of the upper scraper (8) is equal to the height of the upper die cavity (6).
4. A high precision powder metallurgy lower punch die as claimed in claim 1, wherein: the upper die (1) and the lower die (3) are matched with the connecting die cavity (9) in shape and size, and the connecting mode is sliding and detachable.
5. A high precision powder metallurgy lower punch die as claimed in claim 1, wherein: the shape and the size of the lower scraper (16) are matched with those of the lower die cavity (12), the connection mode is sliding connection, and the connection mode of the core rod (13) and the lower scraper (16) is sliding connection.
6. A high precision powder metallurgy lower punch die as claimed in claim 1, wherein: the core rod (13) penetrates through the lower die gland (10), and the core rod (13) is connected with the lower die gland (10) in a sliding mode through the operation through groove (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022689331.4U CN213888161U (en) | 2020-11-19 | 2020-11-19 | High-precision powder metallurgy lower punching die |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022689331.4U CN213888161U (en) | 2020-11-19 | 2020-11-19 | High-precision powder metallurgy lower punching die |
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| CN213888161U true CN213888161U (en) | 2021-08-06 |
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| CN202022689331.4U Active CN213888161U (en) | 2020-11-19 | 2020-11-19 | High-precision powder metallurgy lower punching die |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114226542A (en) * | 2021-11-18 | 2022-03-25 | 杨亮 | Punching compound die and punching machine |
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2020
- 2020-11-19 CN CN202022689331.4U patent/CN213888161U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114226542A (en) * | 2021-11-18 | 2022-03-25 | 杨亮 | Punching compound die and punching machine |
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